1 min read
https://practice.geeksforgeeks.org/problems/0-1-knapsack-problem/0
Iterative
class Solution {
int dp[1005][1005];
public:
int knapSack(int W, int wt[], int val[], int n) {
memset(dp, -1, sizeof(dp));
for (int i = 0; i <= n; i++) {
for (int w = 0; w <= W; w++) {
if (i == 0 || w == 0)
dp[i][w] = 0;
else if (wt[i - 1] <= w)
dp[i][w] = max(val[i - 1] + dp[i - 1][w - wt[i - 1]], dp[i - 1][w]);
else
dp[i][w] = dp[i - 1][w];
}
}
return dp[n][W];
}
};
Recursion